Problem 6. A laboratory experiment is set up to measure the pressure drop for water flowing through a smoothtube as shown. The tube has a diameter of 1.60 cm and a length of 3.50 m. The water enters the tube from areservoir through a square-edged entrance. The water exits the tube through an abrupt exit. (a) Calculate theaverage velocity and volumetric flow rate (in L/min) needed to obtain turbulent flow in the tube. (b) Calculate thereservoir height required to obtain turbulent flow in the tube.largetank of HwaterLDpipeflowNOTE: Many problems in Chapter 8 involve determination of the Moody friction factor, f, for turbulent flowwhich is a function of the Reynolds number, Red, and dimensionless roughness, e/D. For most calculations, fcan be determined using either (1) the Blasius correlation for low Red flow in smooth pipes, (2) a correlation forfully-turbulent flow for high Red flow in very rough pipes, or (3) read from the Moody Diagram (a plot of theColebrook correlation, which does not have a closed form solution). A more accurate approach for moderateRed flow in rough pipes is to iterate for f using the Colebrook correlation and an equation solver (such as inEES, Excel, or Matlab).

Answered: Image /qna-images/answer/8e0d6ea5-ccc9-433b-b8a4-dc3c52f92a90.jpg

Answered: Problem 6. A laboratory experiment is…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The air supply to an oil-engine is measured by being taken directly from the atmosphere into a large reservoir through a sharp-edged orifice 50 mm diameter. The pressure difference across the orifice is measured by an alcohol manometer set at a slope of arcsin 0.1 to the horizontal. Calculate the volume flow rate of air if the manometer reading is 271 mm, the relative density of alcohol is 0.80, the coefficient of discharge for the orifice is 0.602 and atmospheric pressure and temperature are respectively 755 mmHg and 15.8 °C. (You may assume R = 287 J · kg¯' ·K!.)
A venturi meter having a throat diameter of 100mm is fitted into a pipeline which has a diameter of 250mm through which water is flowing. The pressure difference between the entry and throat tapping measured by a U-Tube Manometer containing mercury of a relative density of 13.6 and the connections are filled with the water flowing in the pipeline. If the difference of level indicated by the mercury in the U-tube is 0.63m, calculate: The theoretical volumetric flow rate and The actual volumetric flowrate if the coefficient of discharge is 0.9
A fluid is flowing in a horizontal pipe 8 in. in diameter with a mean velocity of10 ft/s. The pressure at the center of the pipe is 5 psi, and the elevation of thepipe above the assumed datum is 15 ft. Compute the total head in feet if the fluid is (a) water, (b) oil (SG=0.8), and (c) molasses (SG=1.5).
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A hose pipe of 75 mm bore and length 450 m is supplied with water at 1.4 MPa. A nozzle at the outlet end of the pipe is 3 m above the level of the inlet end. If the jet from the nozzle is to reach a height of 35 m calculate the maximum diameter of the nozzle assuming that f 0.01 and that losses at inlet and in the nozzle are negligible. If the efficiency of the supply pump is 70% determine the power required to drive it.
Oil with SG = 0.9 and dynamic viscosity of 0.04 Pa-s flows at the rate of 60 liters per second through 50 of 120 mm diameter pipe connected in two reservoirs with pipe fittings: 1 globe valve; 1 gate valve % open; 4 standard elbows and two 45° elbow. If the head loss is 80 m, determine the velocity flow, the type of flow and the friction factor.
Consider water flowing through a water hose of length of 100 ft, diameter of 3/8 inch, and average surface roughness 5-105 ft. The gage pressure at the hose inlet is 40 psi. The hose contains a ball valve which controls the flow rate. Calculate the mass flow rate of water through the hose with the ball valve completely open and with ball valve 2/3 closed. Hint: Determining the friction factor requires an iterative approach - start the iterations by assuming that the friction factor is equal to 0.01 and perform at least 3 iterations.
A water pump is used to pump the water to a large water tank as shown in Figure. The free surfaces of both water tanks are under atmospheric pressure. Dimensions and local losses are given below. The flow rate of the pump is determined as 16.2 L/min. Calculate the required manometric head of the pump and the required motor power if the total efficiency is 76.2 percent. The water at 10oC. density r = 996.2 kg/m3, dynamic viscosity µ = 1.362x10-3kg /ms. z2-z1 = 7.62 m (height difference), D = 2.62 cm (pipe diameter), L = 176.2 m (total pipe length), ɛ = 0.2562 mm (pipe roughness value) Local loss coefficients: KL,inlet = 0.562 (pipe inlet) KL,valve = 16.2 (valve), KL,elbow = 0.9262 (there are 5 elbows totally in pipe line), KL,outlet = 1.0562 (pipe outlet).
last three digits of your number for the upstream pressure: 754
A venturi meter is introduced in a 300 mm diameter horizontal pipeline carrying a liquid under a pressure of 150 kPa. The throat diameter of the me-ter is 100 mm and the pressure at the throat is 400 mm of mercury below atmosphere. If 3% of the differential pressure is lost between inlet and the throat, determine the flow rate of the pipeline. please solve this with complete solutions and figures. Thank you
A tanker carrying tolueneis unloaded to an onshore storage tank using the ship’s pumps. The pipeline is 225-mm inside diameter and 900-m long (200-m long suction line, 700-m long discharged line). Miscellaneous losses due to fittings, valves, etc., amount to 100 equivalent pipe diameters at the suction side, and 500 equivalent pipe diameters at the discharged side. The maximum liquid level in the destination storage tank is 30 m above the lowest liquid level in the ship’s tanks. The ship’s tanks are nitrogen blanketed and maintained at an absolute pressure of 1.05 bar (1 bar = 105 Pa). The storage tank has a floating roof, which exerts an absolute pressure of 1.1 bar on the liquid. The ship must unload 1000 metric tons within 5 hours. Taking pump efficiency as 70%, (ρ = 874 kg/m3, μ = 0.62 cP, Pvapor = 0.037 atm absolute). Determine: A. Pump head (m) B. Pump differential pressure (Pa) C. Suction head (m) and pressure (Pa) D. Discharge head (m) and pressure (Pa) E. Actual pump power…

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